<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录认证</title>
</head>
<body>
<script type="application/javascript">
    var url = '<?php echo $url ?>';
    window.onload = function () {
        location.href = url;
    }
</script>
</body>
</html>